Bassist and guitarist best known as a founding member of alternative rock stalwarts Dinosaur Jr. After his dismissal from the band in 1988, be focused on other musical projects like Sebadoh before reuniting with Dinosaur Jr. in 2005.
He formed the punk band Deep Wound with Scott Helland while the two were high school students in Westfield, Massachusetts.
He made a cameo appearance as a musician in the 2002 film Laurel Canyon.
He married a woman named Kathleen.
He formed Dinosaur Jr. with singer and guitarist J. Mascis in 1984.